Egyptian cotton bag liner?

I need help finding the lightest type of cotton that's strong enough this website:

http://www.dharmatrading.com/fabric/cotton/cotton-fabrics.html

, "I don't like silk". I would like to be under 10oz. I will probably sew the dimensions 78×55.

I don't see Egyptian, what would you choose? I want to copy this coocon liner basically.

http://www.campmor.com/outdoor/gear/Product___45913